Formula Relationship Between Wave Number and Angular Wave Number

$$k ~=~ 2\pi \, \nu$$ $$k ~=~ 2\pi \, \nu$$ $$\nu ~=~ \frac{k}{2\pi}$$

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Angular wavenumber

$$ k $$ Unit $$ \frac{\mathrm{rad}}{\mathrm{m}} $$

Angular wave number indicates the covered phase angle of a wave per meter.

Wavenumber

$$ \nu $$ Unit $$ \frac{1}{\mathrm{m}} $$

Wavenumber indicates how many times the wavelength of a periodic wave fits into one meter.

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Formula Relationship Between Wave Number and Angular Wave Number

Angular wavenumber

Wavenumber